The Difference Between PEMBRO and L and X

L and X are such an interesting drug, also a challenging drug to use so clinically in terms of tolerability issues as well. So another thing we asked about, we talked about this before, whether or not any preference between the IOs,. Most people say no, a couple people say PEMBRO, maybe I'm I guess is more related to practical issues of access being used to it, etc. The data certainly doesn't look very different. But this is a really interesting question, actually this kind of reminds me what happened with neuroaprope and oeuvre, the issue of duration of treatment, Matt.